circle
zynthian-sys
circle | zynthian-sys | |
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31 | 37 | |
1,733 | 73 | |
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8.9 | 7.4 | |
10 days ago | 4 days ago | |
C | Shell | |
GNU General Public License v3.0 only | GNU General Public License v3.0 only |
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circle
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MiniScript on a bare-metal Raspberry Pi
If you're a developer and feeling adventurous, you can also try building it yourself. The source is all on GitHub. It uses the circle-stdlib project (which is circle plus some additions to support much of the C and C++ standard libraries) as a submodule; hopefully I've set that up correctly, but you could always clone that separately and place it in the MiniScript-Pi folder. Check out circle's build instructions for info on setting up your toolchain. (Mac users: be careful with the configure script, which does not work properly on MacOS; find me on Discord and I'll help you fix the script or configure manually.)
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Bare Metal Emulation on the Raspberry Pi – Commodore 64
I suggest checking out circle https://github.com/rsta2/circle since it's basically a library for the pi hardware. I'm doing some experiments with it myself now.
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Assembly coding without OS
You can also run a Pi without an operating system, programming it in C or C++ probably. See for example: GitHub - rsta2/circle: A C++ bare metal environment for Raspberry Pi with USB (32 and 64 bit)
- Bare Metal Emulators and launcher for RetroFlag GPI v1
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Help with C64 Emulation (never used a C64 before in my life)?
BMC64 is VICE in a trenchcoat unikernel / bare-metal framework called Circle: https://github.com/rsta2/circle
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Smalltalk-80 on Raspberry Pi: A Bare Metal Implementation
It uses the circle library (https://github.com/rsta2/circle) to provide a minimal runtime (mainly to interface with the hardware).
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How do I get started with making my own Linux based OS on Embedded Hardware?
I experimented with circle the other day (https://github.com/rsta2/circle) Looks promising, and most likely within your knowledge of C/C++ development.
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EmuTOS: A Modern FOSS Replacement OS for the Atari ST – and the Amiga Too
Natively would be amazing but a vast amount of work.
The way Apple moved classic MacOS from 680x0 to PowerPC was to write a tiny kernel emulator, with an API to run native stuff on the metal, and run more or less the whole OS under emulation, profile it and just translate the most speed-critical bits.
That's a lot of work for a FOSS project but given the performance delta between 1980s 680x0 and 2020s ARM, total emulation of the whole thing should be perfectly fine. It's how the PiStorm Amiga upgrade works.
https://amigastore.eu/853-pistorm.html
So all I envision is something like Aranym:
https://aranym.github.io/
... running on top of Ultibo, say:
https://ultibo.org/
Or maybe Circle:
https://github.com/rsta2/circle
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Solutions for >1GHz microprocessor with option for bare metal or freeRTOS
Circle is a C++ bare metal programming environment for the Raspberry Pi.
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New in this sub, some questions…
The only other reasonable option would be to port it to a new platform which is popular that has a few well documented hardware interfaces so as not to create a hellish nightmare writing drivers. Maybe then you could do a one-off port to that platform (though you might have to re-target the HolyC compiler to target it instead if it is not x86_64). The Raspberry PI seems like a decent option here since there is already a baremetal C++ library supporting USB, keyboard, mouse, sound, video, and as an added bonus UART, I2C, SPI, GPIO. You would have good code examples for porting all the necessary drivers. But obviously this would still be a lot of work and the compiler would need to be re-targeted and user space adapted for running on ARM. That being said backwards compatibility is strong, ARM seems actually interested in keeping it that way (at least for now). The library I'm talking about is here: https://github.com/rsta2/circle
zynthian-sys
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Electronic music icon Korg makes music with Raspberry Pi
There's a bunch of people doing some pretty amazing synth builds with the Raspberry Pi -- the Zynthian crew [0] springs to mind.
Basically bring your own USB midi keyboard / controller - these tend to be cheap, but also engender very strong opinions, so there's some distinct advantages to having them as separate components, but with the synth box being much more portable than a laptop or desktop.
As to the Korg Wavestate - on this side of the pond (AU) it has an RRP of A$1500, though street pricing is around A$1000.
[0] https://zynthian.org/
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Help starting out a DIY synth guitar project
Another option might be to get a Raspberry Pi and a USB audio interface to run Zynthian. Zynthian can be built from scratch with a TV, mouse and keyboard. You will need the USB audio for a line input from your amp. Heaps of DIY learning building your own Zynthian. You can scale up to the full hardware kit if you like what you see.
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Can OP-1 Field use a USB hub to act as MIDI host for multiple devices?
I suggest something Raspberry Pi based, Zynthian for example. It's the total opposite in this regard, allowing so much freedom and possibilities that it can get overwhelming.
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Spare RaspberryPi 4b with Touchscreen, any ideas for integrating into setup?
There are several great RPi synth projects around, including mt32-pi, mini-dexed and samplerbox, but they're all intended for headless use (or with a tiny embedded display). The outlier in that respect AFAIK is Zynthian: https://zynthian.org/
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Ardour 7.0 has been released
Exactly opposite situation in my case - my Ubuntu Studio rig has been rock solid for tracking and many projects .. but the good news is that even if, for whatever reason, you can't qite grok things to be as productive as a pro Ubuntu Studio user (hint: you can) we have all the good things happening in ZynthianOS to explore, anyway - and this just wraps up the same essential goodies into a hardware device that is push-button-user friendly:
http://zynthian.org
And of course there are bleeding edge lessons learned, applied in things like monome, etc.
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Piano sound module for midi controller?
Zynthian is a good option but a bit hard to get your hands on in the silicon supply chain crisis.
- Raspberry Pi in synths?
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Any good portable synths?
Zynthian is a good one to add to this list.
- Supply chain issues are killing synth companies
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Would an MPC Live 2 be helpful for me?
You might get some more traction by integrating a Raspberry Pi in a eurorack adapter (or RPi Pico) with some sort of CV interface and leveraging an open source project like Zynthian.
What are some alternatives?
rust-raspberrypi-OS-tutorials - :books: Learn to write an embedded OS in Rust :crab:
mt32-pi - 🎹🎶 A baremetal kernel that turns your Raspberry Pi 3 or later into a Roland MT-32 emulator and SoundFont synthesizer based on Circle, Munt, and FluidSynth.
raspberry-pi-os - Learning operating system development using Linux kernel and Raspberry Pi
elk-pi - Elk Audio OS binary images for Raspberry Pi
MiniDexed - Dexed FM synthesizer similar to 8x DX7 (TX816/TX802) running on a bare metal Raspberry Pi (without a Linux kernel or operating system)
Sonic Pi - Code. Music. Live.
rpi4-osdev - Tutorial: Writing a "bare metal" operating system for Raspberry Pi 4
Rack - The virtual Eurorack studio
dts2hx - Converts TypeScript definition files (d.ts) to haxe externs (.hx) via the TypeScript compiler API
Audio - Teensy Audio Library
8821cu - Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU and RTL8731AU Chipsets
ostep-projects - Projects for an undergraduate OS course